Input Device, Electronic System and Control Method Therefor

1. An input device comprising: a communicator configured to communicate with an electronic device; a pen tip provided at one end of the input device; a first electrode portion including a plurality of first sub-electrodes spaced apart from each other by a predetermined distance from the pen tip; a second electrode portion including a plurality of second sub-electrodes spaced apart from each other to correspond to each of the plurality of first sub-electrodes at a position spaced apart from the first electrode portion by a predetermined distance; and a processor configured to: provide a driving signal to the first electrode portion and the second electrode portion, generate tilt information of the input device by comparing a plurality of reference capacitances and a plurality of capacitances formed between the plurality of first sub-electrodes and the plurality of second sub-electrodes, and transmit the tilt information to the electronic device, wherein the plurality of reference capacitances are capacitances formed between the plurality of first sub-electrodes and the plurality of second sub-electrodes and measured in a state where the input device is at a predetermined angle with respect to the electronic device.

2. The input device of claim 1 , wherein: one of the plurality of first sub-electrodes and a corresponding second sub-electrode among the plurality of second sub-electrodes operates as a first capacitor according to a first driving signal, another one of the plurality of first sub-electrodes and a corresponding second sub-electrode among the plurality of second sub-electrodes operates as a second capacitor according to a second driving signal, and the plurality of capacitances comprise capacitance of the first capacitor and capacitance of the second capacitor.

3. The input device of claim 1 , wherein the plurality of first sub-electrodes are spaced apart from each other by a predetermined distance and disposed to surround the input device, and wherein the plurality of second sub-electrodes are spaced apart from the first electrode portion by a predetermined distance in a direction opposite to a direction where the pen tip is disposed, and disposed to surround the input device.

4. The input device of claim 1 , wherein the processor comprises: a driver configured to apply a driving signal to the electrode portion; and a plurality of integrators each including a resistor and an amplifier (AMP) connected to the resistor, and wherein input of each AMP is connected to a respective first sub-electrode and output of each AMP is connected to a respective second sub-electrode, and wherein each of the plurality of first sub-electrodes and each of the plurality of second sub-electrodes are paired respectively and operate as a respective capacitor of each of the plurality of integrators.

5. The input device of claim 4 , wherein the processor is configured to obtain each of the plurality of capacitances of each of a plurality of capacitors on the basis of a magnitude of constant current source applied to the plurality of integrators, integration time, and an output voltage value of each of the plurality of integrators.

6. The input device of claim 1 , wherein the tilt information of the input device is at least one of information on the plurality of capacitances or a tilt value calculated on the basis of the plurality of capacitances.

7. The input device of claim 1 , wherein the processor is configured to generate rotation information of the input device on the basis of a plurality of capacitances formed between the plurality of first sub-electrodes and the plurality of second sub-electrodes and transmit the rotation information to the electronic device.

8. An electronic system including an electronic device having an input device and a touch screen, wherein: the input device includes a pen tip provided at one end of the input device, a first electrode portion including a plurality of first sub-electrodes spaced apart from each other by a predetermined distance from the pen tip, and a second electrode portion including a plurality of second sub-electrodes spaced apart from each other to correspond to each of the plurality of first sub-electrodes at a position spaced apart from the first electrode portion by a predetermined distance from the first electrode portion, wherein a plurality of capacitances formed between the plurality of first sub-electrodes and the plurality of second sub-electrodes is transmitted to the electronic device; and the electronic device is configured to obtain a tilt value of the input device by comparing a plurality of reference capacitances and the plurality of capacitances received from the input device, and control the touch screen on the basis of the obtained tilt value, wherein the plurality of reference capacitances are capacitances formed between the plurality of first sub-electrodes and the plurality of second sub-electrodes and measured in a state where the input device is at a predetermined angle with respect to the electronic device.

9. A controlling method of an input device including a pen tip provided at one end, a first electrode portion including a plurality of first sub-electrodes spaced apart from each other by a predetermined distance from the pen tip, and a second electrode portion including a plurality of second sub-electrodes spaced apart from each other to correspond to each of the plurality of first sub-electrodes at a position spaced apart from the first electrode portion by a predetermined distance from the first electrode portion, the method comprising: providing a driving signal to the first electrode portion and the second electrode portion; generating tilt information of the input device by comparing a plurality of reference capacitances and a plurality of capacitances formed between the plurality of first sub-electrodes and the plurality of second sub-electrodes; and transmitting the tilt information to an electronic device, wherein the plurality of reference capacitances are capacitances formed between the plurality of first sub-electrodes and the plurality of second sub-electrodes and measured in a state where the input device is at a predetermined angle with respect to the electronic device.

10. The controlling method of claim 9 , wherein: one of the plurality of first sub-electrodes and a corresponding second sub-electrode among the plurality of second sub-electrodes operates as a first capacitor according to a first driving signal, another one of the plurality of first sub-electrodes and a corresponding second sub-electrode among the plurality of second sub-electrodes operates as a second capacitor according to a second driving signal, and the plurality of capacitances comprise capacitance of the first capacitor and capacitance of the second capacitor.

11. The controlling method of claim 9 , wherein the input device comprises a plurality of integrators each including a resistance and an amplifier (AMP) connected to the resistance, and wherein each of the plurality of first sub-electrodes and each of the plurality of second sub-electrodes are paired respectively and are operated as a respective capacitor of each of the plurality of integrators.

12. The controlling method of claim 11 , wherein the generating tilt information of the input device comprises obtaining each of the plurality of capacitances of each of a plurality of capacitors on the basis of a magnitude of constant current source applied to the plurality of integrators, integration time, and an output voltage value of each of the plurality of integrators.